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Address already used problem in Java Socket application

Ammy Singh
Ranch Hand

Joined: Oct 17, 2008
Posts: 36
I have made a small server which accepts a client request. The code is as following.
But i am getting an error message as: Exception in thread "main" java.lang.NullPointerException
at ServerSide.main(ServerSide.java:24)
Not a priveleged Userjava.net.BindException: Address already in use: JVM_Bind



i think the problem is with the port number that i am using, but i tried different port numbers and error still exist, please help,
Regards,
Aman


SCJP1.4
i luv Ranch it always helps...!!!
Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 40030
    
  28
And which line is the Exception thrown from?
Ram Narayan.M
Ranch Hand

Joined: Jul 11, 2010
Posts: 247

Port address is already in use...


SCJP 6 [SCJP - Old is Gold]
Ammy Singh
Ranch Hand

Joined: Oct 17, 2008
Posts: 36
Campbell Ritchie wrote:And which line is the Exception thrown from?

The exception is trown at following:

and



And the console result is as : Not a priveleged Userjava.net.BindException: Address already in use: JVM_Bind
Exception in thread "main" java.lang.NullPointerException
at ServerSide.main(ServerSide.java:22)

Ammy Singh
Ranch Hand

Joined: Oct 17, 2008
Posts: 36
Ram Narayan.M wrote:Port address is already in use...


Ok its fine that the port address is already in use, but how can i find an unused port, and note that i am running the program on a standalone server.
Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 40030
    
  28
Too difficult a question for "beginning Java". Moving thread.
Ammy Singh
Ranch Hand

Joined: Oct 17, 2008
Posts: 36
Campbell Ritchie wrote:Too difficult a question for "beginning Java". Moving thread.


ok thank you next time i will take care about which thread to select.
 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: Address already used problem in Java Socket application